Re: TRAVAN tape

David Monro (
Sun, 8 Sep 1996 01:58:30 +1000 (EST)

> Russell Berry wrote:
> >
> > I have one, it works great, fast too takes me about 1.5 hours
> > to back up 750Meg
> >
> > ---russ
> >
> While I suppose that this represents a good dollar-value, my Tandberg
> 4200 SCSI tape drive backs up 750 Mb in a bit under 50 minutes. DAT
> drives probably better that by another 60-80%..
> - Steve
Try a DLT - better than 1Mb/s, or about 12 minutes for 750 Mb. The Travan is
getting less than 150K/s by my calculation, which is only marginally better
than my old SCSI QIC-150 (which of course only gets 250Mb on a DC6250 which
probably costs more that the Travan media, so it wins there).
> (Benchmarks are great, eh? <g>)
Exactly. Of course a DLT is overkill for most home systems (do _you_ need to
back up 25Gb/night?), but great for big servers. DAT is good for serious home
users and medium servers at up to 6Gb per tape at about 600K/s. Below that
maybe the larger capacity QIC drives for up to a bit over a gig, and maybe
then Travan. After that, anything you can scrounge :-) (old QIC, old floppy
tape, maybe a SCSI reel to reel drive if you are completely mad)

btw, does anybody know what (if anything) the density code 0x04 is used for?
My tape drive appears to accept densities 0x04, 0x05, 0x0f and 0x10, but mt
just says unknown for 0x04.